Drag-link element



M. P. GRAHAM DRAG LINK ELEMENT Filed Jan 11. 1923 Arronwzr Unitas sitarFATENT OFFICE.-

MATTHEW P. GRAHAIVI, OF DETROIT, MICHIGAN, ASSIGNOR TO THE STEELPRODUCTS COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

DRAG-LINK ELEMENT.

Application filed January 11, 1923.

My invention relates to the main elements of drag-links, tie-rods orsimilar devices including in their construction an end tubular socket.

The object 01 the invention is to provide a simple and etl'icient socketconstruction which will meet the necessary requirements oi the art inwhich the article is used.

The said invention consists of a socket construction hereinafter fullydescribed and particularly set forth in the claims.

Heretot'ore di'aglinks and the like have been provided with an endsocket by upsetting or otherwise forming the end of the stock so as toproduce an end cup-shaped flange to which a tubular socket member wasthen Welded. As a result of the welding op eration the molten metalflowed inwardly and had later to be removed so as to prepare theinterior of the socket for the reception of other associated elementssuch as a spring bearing-blocks etc. This operation added anundersirable expense to the cost of manufacture.

A specific object of the invention, therefore, is to produce a socketconstruction which will eliminate the necessity of removing thisintruded metal.

This object I accomplish by upsetting the end portion of the stock toform a cupshaped flange which joins the main or bodyportion of the link,intermediately of the ends of said body portion terminating in a planeintersecting said main or body portion, and then welding the socketmember to said flange. A boss is thus produced which extends into thesocket cavity beyond the weld-joint which forms an abutment tor the saidas sociated elements, thereby eliminating the necessity of removing theintruded metal from the interior.

The annexed drawing and the following description set forth certainmeans and a method embodying my invention, the disclosure however,constituting but one of vaand terminates Serial No. 612,144.

rious ways in which the principle of my invention may be applied.

In said annexed drawmg:

Fig. 1 represents the end portion of a piece of blank cylindricalbar-stock from which the main or body member of the drag-link element ismade.

2 represents a perspective View of the end portion of said main memberafter the flange has been formed thereon.

Fig. 3 represents an axial sectional view of said end portion and atubular socket member, before the welding operation has been effected.

Fig. 4 represents an axial sectional view after the welding operationhas been effected, and

Fig. 5 represents an axial sectional view of the finished draglinkelement and associated parts.

In practicing my invention I take a piece of steel bar-stock 1 ofsuitable composition, and upset the end portion thereof either hot orcold, to form a cup-shaped flange 2 which joins the member, as shown inFig. 3, at a distance from the end of the member in a plane intersectingsaid member.

A tubular socket member 3, of the required length and of the samediameter and thickness as the end of the flange 2, is then butt-weldedto said flange as shown in Fig. 4c. The molten metal flows inwardly andoutwardly at the joint and forms an interior and an exterior burr asshown. The exterior burr 4 is then removed by grinding. The interiorburr 5 is formed in the annular space 6 surrounding the end or boss 7.This boss is made of sufiicient length to project into the socket cavitybeyond the' weld-joint and forms the abutment for the interior elementsof the drag-link or tierod, as shown in Fig. 5.

It will be noted that the said boss removes the requirement of placingany 01' said interior elements adjacent to the Weldjoint, and thenecessity of removing the inportion; and a tubular socket-memberWeldterior burr is hence eliminated. ed to said flange.

laims covering the method herein dis- '2. An element of the classdescribed conclosed are included in a separate applicasisting of abody-member provided with an 15 5 tion filed by me on March 15th, 1924;,and end tubular socket having a Welded joint inbearing Serial N 0.699,403. terniediate of the sockets ends, and a boss What I claim is:projecting into the socket cavity and beyond 1. An element of the classdescribed consaid joint. sisting of a body-member having its end Signedby me this 3rd day of January, 20 1O portion formed with a cup-shapedflange 1923.; i

terminating in a plane intersecting said end MATTHEWV P. GRAHAM.

